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DC Bus Voltage Regulation of an Active Power Filter Using a Fuzzy Logic Controller

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4 Author(s)
Colak, I. ; Dept. of Electr. & Electron. Eng., Gazi Univ., Ankara, Turkey ; Bayindir, R. ; Kaplan, O. ; Tas, F.

In this paper, a novel control algorithm has been proposed to regulate the DC bus voltage of a single phase shunt active power filter using a fuzzy logic controller. The DC bus voltage of a shunt active power filter should be controlled to compensate the filter losses on the grid. In many industrial applications, a PI controller is generally used to regulate the DC bus voltage of shunt active power filters. In the novel control algorithm the error signal caused by the filter losses has been computed firstly. Then this error signal has been compensated using the fuzzy logic controller. Simulation model of the shunt active power filter with the proposed control algorithm has been designed using the Matlab/Simulink/Simpower and the Fuzzy Toolbox. The simulation results show that the fuzzy logic controller compensates filter losses on the grid and improves the power quality by reducing the total harmonic distortion (THD) of the supply current and increasing the power factor.

Published in:

Machine Learning and Applications (ICMLA), 2010 Ninth International Conference on

Date of Conference:

12-14 Dec. 2010